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Clean Water Act discharge permit · NPDES COG081582

WILLOW CREEK PARK MEADOWS TO C470, Lone Tree, CO: NPDES COG081582 discharge permit, effluent exceedances, inspections, penalties

WILLOW CREEK PARK MEADOWS TO C470, held by Naranjo Civil Constructors Inc, holds NPDES permit COG081582, which discharges to Willow Creek. EPA’s file records it issued August 27, 2026 and expiring May 31, 2028. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for WILLOW CREEK PARK MEADOWS TO C470: its NPDES ID, its permit type and status, its dates, its address in Lone Tree, Colorado, its receiving water, and 7 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COG081582.

Identity

Facility as filedWILLOW CREEK PARK MEADOWS TO C470
Permittee as filedNaranjo Civil Constructors Inc
NPDES IDCOG081582
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedAugust 27, 2026
Expiration dateMay 31, 2028
AddressLone Tree, CO 80124
Receiving waterWillow Creek

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
pH800
Solids, total suspended800
Flow, in conduit or thru treatment plant800
Oil and grease400
Flow, total400
Duration of discharge400
Oil and grease visual400

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES COG081582.

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES COG081582.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

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How we handle your data → Privacy

EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID COG081582 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

This public-records page covers NPDES permit COG081582 for WILLOW CREEK PARK MEADOWS TO C470 in Lone Tree, CO, held by Naranjo Civil Constructors Inc and discharging to Willow Creek. The page lists 7 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.